#!/usr/bin/env bash
# 实例文件：check_unset_params
#
# 对不存在的参数输出错误消息
#
USAGE="usage: check_unset_params scratchdir sourcefile conversion"
FILEDIR=${1:?"Error. You must supply a acratch directory."}
FILESRC=${2:?"Error. You must supply a source file."}
CVTTYPE=${3:?"Error. ${USAGE}"}
